000 00276nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSharma, Yogendra K.
245 0 _aEdcuational Technology And Management
260 _aNew Delhi
_bkPD
_c2006
300 _a315p.
942 _cBK
999 _c11529
_d11529